Dio Guidelines; Voltage; Table 14: J21/J26 I/O Connector Pinout - VersaLogic VL-EBX-38 Hardware Reference Manual

Table 14: J21/J26 I/O Connector Pinout

J21/J26
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

DIO Guidelines

Consider the following guidelines when using the DIO lines.
V
OLTAGE
The DIO lines are 3.3 V Low-voltage TTL (LVTTL) compatible DIOs capable of
sourcing/sinking an absolute maximum of 25 mA of current. Level shifting or current limiting is
necessary when connecting signals with different voltage rails.
CAUTION:
Do not connect the DIO signals to external +5 V devices; doing so will damage the DIO device
and void the warranty.
EBX-38 Hardware Reference Manual
Signal
Digital I/O 1/17
Digital I/O 2/18
Digital I/O 3/19
Digital I/O 4/20
Ground
Digital I/O 5/21
Digital I/O 6/22
Digital I/O 7/23
Digital I/O 8/24
Ground
Digital I/O 9/25
Digital I/O 10/26
Digital I/O 11/27
Digital I/O 12/28
Ground
Digital I/O 13/29
Digital I/O 14/30
Digital I/O 15/31
Digital I/O 16/32
Ground
VL-CBR-2004B Terminal Block
Terminal Block
J1
J2
J3
J4
Multi-purpose I/O
Pin
5
4
3
1
2
5
4
2
1
3
5
3
2
1
4
4
3
2
1
5
32